Not all memories are sweet. Some people spend all their lives trying to forget bad experiences.

    Now American researchers think they are close to developing a pill, {#blank#}1{#/blank#} will help people forget bad memories. The pill is designed {#blank#}2{#/blank#} (take) immediately after a frightening experience. They hope it might reduce, or {#blank#}3{#/blank#} (possible) erase (抹去) the effect of painful memories.

    In November, experts tested a drug on people in the U.S. and France. The drug stops the body from {#blank#}4{#/blank#} (release) chemicals that fix memories in the brain. So far, the research {#blank#}5{#/blank#} (suggest) that only the emotional effects of memories may be reduced, not that memories are wiped out. They are not sure to the degree people's memories are affected.

    The research has caused a great deal of {#blank#}6{#/blank#} (argue). Some think it is {#blank#}7{#/blank#} bad idea, while others support it. Supporters say it could lead to pills which prevent or treat soldiers' troubling memories after war. They say that there are many people who suffer from terrible memories. {#blank#}8{#/blank#}, those who are{#blank#}9{#/blank#} the research say that maybe the pills can change people's memories and changing memories is very {#blank#}10{#/blank#} (danger) because memories give us our identity.

    One Saturday morning in September I {#blank#}1{#/blank#} (go) to a local music festival. I left it early{#blank#}2{#/blank#} I had an appointment later that day. My friends walked me to the bus stop and waited with {#blank#}3{#/blank#} (I) until the bus arrived. I got on the bus and found a seat near the back, and then I noticed a man {#blank#}4{#/blank#} (sit) at the front. He pretended that a tiger toy was real and giving it a voice. He must be {#blank#}5{#/blank#} (mental) disabled.

    Behind him {#blank#}6{#/blank#} (be) other people to whom he was trying to talk, but after some {#blank#}7{#/blank#} (minute) he walked away and sat near me, looking annoyed. I didn't want 3{#blank#}8{#/blank#} (laugh) at for talking to him but I didn't like leaving him on his own either. After a while I rose from my seat and walked to the front of the bus. I sat next {#blank#}9{#/blank#} the man and introduced myself. We had {#blank#}10{#/blank#} amazing conversation. He got off the bus before me and I felt very happy the rest of the way home.

    I'm glad I made the choice. It made both of us feel good.

    Once there was a wise landowner who had two sons. After a few years, the landowner fell ill badly. So he considered {#blank#}1{#/blank#} (select) one of them to rule the family according to their abilities. He called both of them and gave each one a room. He said，“You must fill your room completely with anything you wish. It can be anything! But there should not be any space {#blank#}2{#/blank#} (leave) behind and you should not seek advice {#blank#}3{#/blank#} others! "

    The next day, the landowner visited the {#blank#}4{#/blank#} (old) son's room. The room was completely filled with hay (干草). The landowner sighed on the {#blank#}5{#/blank#} (foolish) of the son. Then he went to the room given to the younger son. But it {#blank#}6{#/blank#} (keep) closed. The landowner knocked at the door. The younger son asked {#blank#}7{#/blank#} (he) father to get in and closed the door again. It was darkness everywhere and the landowner shouted at his son {#blank#}8{#/blank#} (angry). But the younger son lighted a candle {#blank#}9{#/blank#} said, “I have filled this room with light! Now the landowner felt very happy and hugged his son proudly. He understood that the younger would be the right person {#blank#}10{#/blank#} (rule) the family.